baber/WOPTO huggingface dataset:
Patent GB-1017429-A (GB)
Title: Improvements in and relating to crossbar distributors for electrical connections
IPC: H01R24/58
Filed: 1963-04-16
Abstract: 1,017,429. Plug boards; two-part couplings. O. DUNKEL. April 16, 1963 [April 16, 1962], No. 14910/63. Heading H2E. A cross-bar distributer having a number of crossing bus-bars 6, 7 disposed in parallel planes and interconnected by plugs, is built up of identical insulating units 3 held between retaining plates 1 and 2, each unit 3 being formed with crossing grooves 4, 5 to receive bus-bars 6, 7 and with a through plug aperture 8 which opens into each bus-bar-retaining groove so that one of the aperture walls is formed by a bus-bar surface, with which a mating plug makes contact. The retaining plates 1, 2 have registering apertures 9 which may be polygonal or circular (Fig. 2, not shown), and the units 3 may be secured between the plates by rivets or screws, or may be located by means of various arrangements of co-operating projections and recesses. The pin 28 of a cross-bar plug is of asymmetrical cross-section to position it within the correspondingly-shaped aperture 8, and carries two sets 29, 30 of resilient wire-like contacts separated by an angle which corresponds to the angle at which the bus-bars cross, in this case a right-angle. The resilient contact elements 33 of each set have parallel arcuate portions spaced at different distances from the end of the pin so as to contact the spaced bus-bars. The elements 33 are mounted at one end on a metal support member, which may be common to both sets (Fig. 14, not shown) or individual (Fig. 11, not shown). In the latter case the two contact sets 29, 30 may be directly connected or connected through a diode inside the two-part grip 36 of the plug.
Patent GB-903663-A (GB)
Title: Improvements in or relating to transmitting apparatus for frequency-shift electric signalling systems of the kind in which binary information is signalled
Inventor: HAKIN SAHIR SABIR
IPC: H04L27/12
Filed: 1960-04-28
Abstract: 903,663. Code telegraphy. GENERAL ELECTRIC CO. Ltd. April 14, 1961 [April 28, 1960], No. 14936/60. Drawings to Specification. Class 40 (3). [Also in Group XL (c)] In a telemetering or remote control system binary data are transmitted by frequency shift keying of a free running transistor multivibrator, of frequency e.g. 36 kc./s. or 24 kc./s., which is followed by an emitter follower, an amplifier and one or more frequency divider stages, e.g. transistor bi-stable circuits, dividing the original frequencies successively by two to 2250 c./s. and 1500 c./s., the last rectangular wave output being thus passed to the output through a band-pass filter rejecting harmonics. The input binary D.C. signals are through an amplifier and an emitter follower fed to vary the base bias on each of the multivibrator transistors and hence the frequency. The amplifier feeding the frequency divider may include in its emitter circuit the collector circuit of a third transistor which, if rendered non-conductive, transmits a third signal Alternatively, a third frequency may be transmitted.
Patent GB-563012-A (GB)
Title: Improvements in or relating to tuyeres
IPC: C10J3/80
Filed: 1942-10-26
Abstract: 563,012. Tuyeres. ENNESS SENTINEL, Ltd., and COOPER, C. D. Oct. 26, 1942, No. 15024. [Class 51 (i)] [Also in Group XXII] In a water-cooled tuyere for gas producers and the like comprising an outer jacket 2 and a central injector tube 1 provided with fins 5, the fins are welded to the tube 1 and the jacket 2 is formed in two or more portions and. assembled with the fins located between the edges of adjacent portions and welded thereto. End plates 4 and 6 are welded to the jacket, the plate 4 being also welded to the fins 5. The jacket is provided with an inlet 8 and outlet 9 for the circulation of water.
Patent GB-238192-A (GB)
Title: Improvements in machine and method for knitting welted split work hosiery and fabric resulting therefrom
IPC: D04B9/18
Filed: 1925-06-10
Abstract: 238,192. Hemphill Co., (Assignees of Lawson, R. H., and Lawson, J.). Aug. 5, 1924, [Convention date]. Drawings to Specification. Stockings and socks.-Seamless hosiery is provided with split work portions such as the ankle and foot and with a welt portion which is preferably inturned. The articles may be knitted separately, or in a continuous string with intermediate courses of breaking threads.
Patent GB-593327-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/24
Filed: 1945-06-14
Abstract: 593,327. Discharge apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 14, 1945, No. 15103. Convention date, June 15, 1944. [Class 39 (i)] [Also in Group XXXV] A discharge device for controlling the H.T. current in an X-ray tube (see Group XXXV) comprises an anode disc 23 having a rounded edge 24, and a filamentary cathode 27 located in a recess 33 in a shield 28 which also has a rounded edge 32 similar to that of the anode for. avoiding local field concentrations. The shield is carried by a sleeve 29 clamped to the press 30 of the enclosing envelope of the device.
Patent GB-708490-A (GB)
Title: Improvements in or relating to drafting mechanisms for textile fibres
Inventor: NOGUERA JOSEPH
IPC: D01H5/56
Filed: 1952-06-16
Abstract: 708,490. Drafting mechanism. CASABLANCAS HIGH DRAFT CO., Ltd. Feb. 4, 1953 [June 16, 1952], No. 15110/52. Class 120(2) In a drafting mechanism of the kind employing a number of drafting systems arranged side by side and each composed of consecutive pairs of rollers, the top rollers of adjoining drafting systems being carried and weighted from the centre by an arm which incorporates weighting means and is pivotally mounted, at the rear end on a fixture at the rear of the mechanism there is provided arm retaining-catch means including a pivoted spring influenced support strut and a co-operating projection, mounted one on the weighting arm and the other on a fixed part of the mechanism, wherein the support strut has a centre of rotation capable of limited longitudinal displacement in relation to the strut between (a) positions in which the spring means urges said strut into and out of engagement with the projection. As shown the weighting arm 1 carries a depending elongated strut 10 which is mounted to pivot on a pin 11 which passes through an elongated slot 12 in the strut. Behind the strut 10 is a spring 14 one end 14b of which engages a groove 17 in the rear edge of the strut. In operation, starting with the operative position shown when the weighting arm 1 is raised about its pivot 1b, the leading edge of the strut 10 will ride over the supporting pin 18 until the hooked extension 10c thereon engages over the pin 18 thus holding the weighting arm in its raised position. The arm will then settle down under its own weight and in so-doing, transfers the supporting strut pivot pin 11 to the opposite end of the slot 12. With this change in position the spring 14 tends to urge the strut upwardly into the arm and in an angular direction away from the pin 18. Thus when the arm is again lifted slightly to clear the hooked extension 10c from its pin 18, the strut is moved angularly by the spring until the humped side edge 10d bears against the cam pin 19. The weighting arm can then be lowered freely into its operative position.
Patent GB-758769-A (GB)
Title: Improvements in or relating to the delivery or dispensing of liquids in predetermined quantities from cartridges or the like containers
IPC: A61M5/315
Filed: 1954-05-22
Abstract: 758,769. Hypodermic injection appliances. SCHOFIELD, H. P. May 13, 1955 [May 22, 1954], No. 15128/54. Class 81(2). A holder for a syringe ampoule holds the ampoule at one end only and provides a plunger rod for the expulsion of medicament. The type' of ampoule employed 10 carries a needle 15, normally enclosed in a removable sheath 28, and is provided with threads 13, or other attachment means, by which it can be supported in a recess in the holder 11. This is provided with finger grips 17 and a slidable plunger rod 18 which can thrust against the piston stopper of the ampoule. The rod 18 carries a threaded extension which can be screwed into the stopper if required or which can be fitted with a suitable head if the stopper is non-retractable. In order to limit the dosage within accurate limits, the rod 18 may have holes 25 to receive a short rod which acts as a stop, or it may have grooves in which a clip is engaged. Specification 743,789 is referred to.
Patent GB-1273974-A (GB)
Title: Improvements in or relating to alternator regulating systems
Inventor: GROLLET DUDLEY FRANCIS
IPC: H02J7/24
Filed: 1968-03-29
Abstract: 1,273,974. Vehicle ignition warning systems. MULLARD Ltd. 22 May, 1969. [29 March, 1968], No. 15138/68. Heading H2H. [Also in Division G3] An automatic voltage regulator for the rectified output (unreferenced) of a vehicle alternator (not shown) comprises a conventional arrangement C supplied from auxiliary diodes 2a connected to the alternator windings, the field winding 3 and its controlling series transistor 7 being supplied from the battery or the main rectifier through the ignition switch 4. Thus the diodes 2a need only be of the low power type and the regulator C is supplied with a more stable voltage compared with a known arrangement, Fig. 1 (not shown), wherein the auxiliary diodes supply both the regulator and field winding. The described embodiment also enables an ignition warning lamp 5a of reduced power to be used. In a modification, Fig. 3 (not shown), the portion of the regulator including members 7, 8, 9 and their associated components is supplied from the terminal F +, the other circuit connections remaining unaltered. The sensing network 11-15 may be supplied directly from the battery by provision of a further sensing wire and terminal, Figs. 2a and 4 (not shown), the latter embodiment also including an additional transistor and terminal for controlling the warning lamp.
Patent GB-1392088-A (GB)
Title: Blood pressure measuring apparatus and method including detection  and rejection of artifact signals
IPC: A61B8/04
Filed: 1972-03-30
Abstract: 1392088 Measuring blood pressure F HOFFMANN-LA ROCHE & CO AG 30 March 1973 [1 April 1971 (2)] 15148/72 Heading H4D [Also in Division G1] A method of and apparatus for measuring blood pressure comprising means for externally occluding an artery by pressure, varying the pressure to allow the artery to open and close and deriving electrical pulse signals indicating the relation between the blood pressure and the external pressure and treating as invalid pulses those whose width or repetition rate exceed predetermined standards. Pressure cuff 22 is inflated by pump 23 and at a preselected maximum pressure a relief valve opens slowly deflating the cuff. When the cuff pressure falls below systolic pressure the artery opens momentarily and the movement is detected by the Doppler shift in CW ultrasonic signals transmitted and received by transducers 31, 32 under the cuff. The detected Doppler signals pass to parallel band-pass filters 35, 36 of bandwidths 45-300 Hz and 100-500 Hz respectively. Relay 37 initially passes the output of filter 35 to amplifier 41, threshold 42 and thence to pulse rate and width discriminator 43. Here pulses less than 120 ms. long and spaced apart by more than 250 ms, are treated as valid pulses which pass through gate 44 to lamp driver 49 which lights indicator 50. Gate 44 is inhibited for a period of 2À5 s. after the maximum cuff pressure to avoid triggering by spurious noise from the relief valve &c. Valid pulses also pass to counter 52 which on a count of four, latches manometer 27 to indicate the systolic pressure. An alarm 56 is provided which detects if the first valid pulse is received within 10 mm Hg pressure of maximum cuff pressure, indicating that the cuff was not pumped sufficiently high above the systolic pressure. A lamp on indicator 26 is illuminated showing that the apparatus should be recycled. This warning lamp is also lit if non-valid pulses whose summed duration is longer than 2À5 s. are detected during one measurement cycle. Switching detector 58 monitors the higher frequency content of the Doppler signals and if four pulses of sufficient amplitude are encountered relay 37 is switched over such that the apparatus operates on the higher frequency signals providing further noise discrimination. Diastolic pressure is also determined by logic 51 detecting when no more Doppler pulses are detected and then treating the pressure at the last pulse as the diastolic pressure. Reference has been directed by the Comptroller to Specification 1,190,074.
Patent GB-939173-A (GB)
Title: Attaching a hub to a shaft
IPC: F16D1/08
Filed: 1961-04-26
Abstract: 939,173. Securing hubs on shafts. DODGE MANUFACTURING CORPORATION. April 26, 1961 [May 19, 1960], No. 15156/61. Class 80 (2). A wheel, pulley or bearing race hub 17 is secured to a shaft 3 by a setscrew 14 in a collar 12 having an inwardly directed flange 13 surrounding the end of the hub and which setscrew passes through a clearance hole 16 in the hub and grips the shaft 3. A slot is provided between the hole 16 and the end of the hub 17 so that on disassembly any burrs on the shaft formed by the setscrew biting into it pass through the slot on axial movement of the hub. The position of the setscrew 14 relative to the collar 12 and the thickness of the collar are so selected that the deformation of the collar caused by tightening the setscrew lies between one and there thousandths of an inch. In Fig. 7 (not shown), the hub is keyed to the shaft and the setscrew in the collar passes through a clearance hole in the hub and grips the key.
Patent GB-845382-A (GB)
Title: Electric switch interposed in a mechanical linkage
Inventor: ROSENBERG MAX
IPC: H01H13/18
Filed: 1958-05-12
Abstract: 845,382. Retractive switches. GAYLORD PRODUCTS Inc. May 12, 1958, No. 15206/58. Class 38 (5). A switch which is mounted in a linkage, e.g. that between an accelerated pedal and the throttle spindle of a carburetter, has a housing to which one link of the linkage is rigidly connected, the housing having a sleeve in which is arranged an operating plunger carried by another link of the linkage. In one form, Fig. 2, wherein the link 14 is moved to the right when operated, a lever 34 bears against the end of the plunger 21 and tilts clockwise as a result of such movement to throw a spring 36 across dead centre and open contacts 32, 37. The plunger 21 is capable of movement with respect to the housing 16, such movement being limited by a pin and slot 23, 24. In a modification (Fig. 3, not shown), the contacts may open as a result of movement to the left of the plunger. In another form, Fig. 4, the link 45 is connected to the housing by an arm 44 mounted on a pin 50 secured to the housing.
Patent GB-351192-A (GB)
Title: An improved method of washing slimy-pulpy, finely divided or liquid products
IPC: B04B15/12
Filed: 1930-05-17
Abstract: 351,192. Centrifugal machines. ALTPETER, L., 38, Walpurgisstrasse, Essen, and GUTEHOFFNUNGSHœTTE OBERHAUSEN AKT.-GES., Rhineland, both in Germany. May 17, 1930, No. 15250. [Class 23.] Treating substances with liquids. -Finely divided par. ticles or slimy-pulpy materials are washed in a centrifuge intc which they are introduced simultaneously with or later than the washing liquid. The centrifuge a is continuously rotated and the washing liquid introduced through the pipe b; it is thrown to the periphery to occupy the position c. The material to be washed is then introduced, and at first occupies the position d, but being heavier than the washing liquid it gradually penetrates the latter until the materials interchange positions. During this operation the materials are washed and when it is complete the washing liquid is withdrawn through the pipe f. This pipe is of the type described in Specification 344,293, and enables the washing liquid to be completely withdrawn without disturbing the treated material which is afterwards thrown out of the centrifuge. Where the washing medium is heavier than the material to be washed the material is introduced first into the machine. The apparatus may be used in the preparation of potash, clay, dye-paste, cellulose, coal, oils, acids and the like.
Patent GB-398139-A (GB)
Title: Improvements in or relating to the determination of the percentage of water in wood,textiles, and other substances
IPC: G01N31/22
Filed: 1933-05-26
Abstract: <PICT:0398139/III/1> The moisture-content of materials such as wood, textiles &c, is determined by withdrawing the air enclosed in the interstices of the material and causing it to act quickly upon a hygrometric device in a closed chamber.  The preferred hygrometric device is a cobalt test paper combined with a colour scale.  In the illustrated modification the test paper 8 and scale 7 are enclosed in a chamber 16 having a window 19, and the chamber is provided with a connecting piece 14 which is screwed into a hole 12 bored in a piece of wood to be tested.  Suction is applied to the connection 20 withdrawing air from the pores of the wood into the testing chamber. When the material to be tested is in the form of fibres or small pieces it may be placed inside a chamber containing the test paper, the chamber being then evacuated.
Patent GB-546409-A (GB)
Title: Frame antenna arrangement
IPC: H01Q7/00
Filed: 1939-07-11
Abstract: 546,409. Transformers. MEIER, K. H. July 11, 1939, No. 15306. Convention date, June 26, 1939. Divided out of 532,164, [Group XL]. [Class 38 (ii)] [Also in Group XL] Two fixed frame aerials are set at right-angles to each other and are periodically coupled to a common input through separate selectable channels, one of which includes a goniometer device so that the aerial input can be switched to give a non-directive, figure-of-eight, or cardioid response at will, in order to cut out interference from other transmissions. In Fig. 5, with the switches 19, 20 in the full line-position, the input from aerial 1 is combined, through a screened downlead 6, with that from aerial 2 (the latter passing through a phase-shifting resistance 11) so as to give a non-directive response as described in Specification 532,164, [Group XL]. In the dotted-line position of the switches, the two aerial inputs are passed through a radiogoniometer arrangement including fixed primary coils 12, 13 and rotatable secondary coils 14, 15, arranged on a common spindle 16 as shown in elevation in Fig. 3a, so as to give a directional response. In Fig. 6 (not shown), the frame aerials are coupled to separate input amplifiers, the output currents from which are fed together through suitable switches to a third valve, so as to give either a non-directional, a figure-of-eight, or a cardioid response.
Patent GB-244805-A (GB)
Title: Improvements in or relating to anti-friction bearings for leaf-springs
IPC: F16F1/20
Filed: 1924-06-25
Abstract: 244,805. Salter, H. June 25, 1924. Laminated springs. -Rollers 7 between the leaves 8 of a vehicle spring are spaced apart and prevented from moving laterelly by end flanges 12 overhanging the edges of the leaves, one or more rollers 7<1> being fitted between each pair of flanged rollers 7. The leaves 8 have spacing pieces 9 in the middle and the free ends are prevented from opening by shackles 14 secured to the leaves bv rivets 15. The rivets 15, pins 13, or metal strips secured to the leaves may protrude into the path of rollers to prevent escape of the latter.
Patent GB-1130638-A (GB)
Title: Preparation of -‡-cyanoacrylic esters
Inventor: RAY NEIL HUNTER
IPC: C09J4/00
Filed: 1966-04-06
Abstract: 1,130,638. Cyanoacrylic acid derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 March, 1967 [6 April, 1966], No. 15344/66. Heading C2C. Adducts with anthracene of monomeric methyl or ethyl α-cyanoacrylate may be obtained by a process which comprises heating a mixture of an ester of cyanoacetic acid, anthracene, formaldehyde and a basic condensation catalyst in an inert non-aqueous organic solvent. In a subsequent treatment the water may be removed from the reaction system and the monomeric ester of α-cyanoacrylic acid displaced from its anthracene adduct. The adduct-forming reaction may be effected at 60-100‹ C., the subsequent water-removal step is preferably effected by permitting the water to form an azeotrope with the solvent which is distilled out and the displacement reaction may be effected by heating the adduct under atmospheric pressure alone or with another olefinic molecule, e.g. a gaseous olefin or maleic anhydride.
Patent GB-594295-A (GB)
Title: Improvements in mixing and kneading apparatus
IPC: B01F15/00
Filed: 1944-08-11
Abstract: 594,295. Mixing-machines. PRESSER, E. A. F. Aug. 11, 1944, Nos. 15348 and 15349. Convention dates, June 28, 1943, and Jan. 21, 1944. [Class 86] A rotary kneading member comprises a series of pairs of oppositely inclined kneading elements, one element of each pair radiating from the central hub of the kneading member to a wall from the outer side of which radiates the other element. One element is arranged to force the material downwardly and the other to raise it upwardly. A radial baffle co-operates with each downwardly acting element to transfer the material kneaded thereby to the upwardly acting element of the pair next succeeding in the direction of rotation of the kneading member. Each outer element inclines upwardly from its edge 13 to its edge 12, Fig. 1, and is separated by a wall 14, Fig. 2, from the inner element which inclines downwardly from its edge 10 to its edge 11. The member is mounted adjacent the floor of a container for rotation on a vertical shaft 5, and the material is forced downwardly by the inner elements to be kneaded against the floor of the container. On leaving each inner element the material is deflected by a baffle 16 into the path of an outer element to be raised thereby and to pass over the wall 14 for further treatment by the inner elements. A stationary ring enclosing a radially disposed baffle may be mounted above and in alignment with the walls 14. The container may be provided with a hermetically sealed discharge door level with the baffle 16. The shaft 5 may extend through the bottom of the container and through a stuffing box which prevents ingress of the kneaded material to the lower bearing supporting the shaft.
Patent GB-965130-A (GB)
Title: Improvements in and relating to filters
IPC: B01D29/23
Filed: 1962-04-19
Abstract: 965,130. Filter and coalescer elements. BRIGGS FILTRATION CO. April 19, 1962 [Oct. 4, 1961], No. 15390/62. Heading B1D. A filter comprises a hollow cylindrical member made up of a first lamination of fibreglass 14 having fibres disposed in a radial direction parallel with the flow of liquid through the filter and wrapped in cotton gauze 16, a successive layer of spirally-wound fibreglass 18 having fibres disposed radially to the flow of liquid and of greater density than the first layer to effect an increase of filtering action and wrapped in cotton gauze 19, a layer of non- moulded fibreglass convolute wrap 20, a spirally wrapped screen of fibreglass 22 and a layer of fibreglass 24 supported by a spirally wrapped screen of fibreglass 26, which assembly is then heated to bond the layer 24 to the screen 26, before being wrapped with a layer of fibreglass 28 and an outer layer of cellulose acetate felt 32, which is fungus resistant and causes water to coalesce. The resulting construction is then treated with adhesive at its opposite ends and a gasket of resinous or rubber material 34 and a flanged disc support plate 36 of, e.g., metal is joined to each end of the filter to provide reinforcement and a seal. A nylon sock is pulled over the outer layer 32 of the filter and an end cap 40 of, e.g., rubber is placed on each end of the filter.